91Ó°ÊÓ

Define immunity. What is meant by memory and specificity in the immune system?

List and briefly summarize the three main functions of the immune system.

Define the following terms and explain their significance: a. anaphylaxis b. agglutinate c. extravascular d. degranulation c. acute-phase protein f. clonal expansion g. immune surveillance

How are histiocytes, Kupffer cells, osteoclasts, and microglia related?

What is the mononuclear phagocytic system, and what role does it play in the immune system?

Give examples of physical, mechanical, and chemical barriers to infection.

Define self-tolerance and relate self-tolerance to autoimmune disease.

Explain the terms stress, stressor, and general adaptation sydrome.

$$ \begin{aligned} &\text { Concept map: Map the following terms. You may add terms. }\\\ &\begin{array}{ll} \text { - adaptive immunity } & \text { - helper T cell } \\ \text { - antibody } & \text { - immune complex } \\ \text { - antigen } & \text { - innate immunity } \\ \text { - antigen-prescnting cell } & \text { - memory cell } \\ \text { - bacteria } & \text { - MHC class I } \\ \text { - basophil } & \text { - monocyte } \\ \text { - chemotaxin } & \text { - NKeutrophil } \\ \text { - cytotoxic cell } & \text { - opsonin } \\ \text { - cytotoxic T cell } & \text { - phagocyte } \\ \text { - dendritic cell } & \text { - phagosome } \\ \text { - cosinophil } & \text { - Tlymphas cell } \\ \text { - viruses } & \end{array} \end{aligned} $$

Why do lymph nodes often swell and become tender or even painful when you are sick?